Sorry, but licking pussy is for lesbians and giving oral sex is degrading... thought you could also try to suggest a 3-some with another girl, if your chick wants her pussy eaten... That's like a win-win, she gets to have her pussy eaten and you get to have 2 chicks...
I'd eat girls ass any day over pussy... Booty is that special place where not everyone can touch and kisses between the cheeks are like a love confession. Eating pussy is one of those things that can only happen while playing resistant, it's degrading... You know, those things like; "Oh, noes! Don't wanna lick pussy!", while being chained down and having girl seat on dude's face...
Oh, did I forget to say that dominance in a relationship is decided by who rides on top in a bed and the loser gets to kiss ass and mob the floors... Girls who want me to dominate them sexually like some kind of silly slave-boy to receive pleasure, better like the taste of ass, because they aren't going to get what "they" want... Also I can never take seriously a woman who has eaten my dirty hairy man ass...